Home / 156,113.55-234,101.07-71,853.30

Finding the Fourth Proportional to 156,113.55, 234,101.07 and 71,853.30

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Solution

The fourth proportional to 156,113.55, 234,101.07 and 71,853.30 is: 107,748.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,113.55 : 234,101.07 = 71,853.30 : x
  2. Step 2: Convert to fraction form
    156,113.55/234,101.07 = 71,853.30/x
  3. Step 3: Cross multiply
    156,113.55x = 234,101.07 × 71,853.30
  4. Step 4: Simplify right side
    156,113.55x = 16,820,934,413.03
  5. Step 5: Solve for x
    x = 16,820,934,413.03/156,113.55
  6. Step 6: Final answer
    x = 107,748.07

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.